Enamel hypoplasia

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Enamel hypoplasia
Classification and external resources
ICD-10 K00.4
ICD-9-CM 520.4

Enamel hypoplasia is a defect of the teeth in which the enamel is hard but thin and deficient in amount,[1] caused by defective enamel matrix formation with a deficiency of vitamin D in the body. Usually the condition involves part of the tooth having a pit in it. In some cases, the natural enamel crown has a hole in it, and in extreme cases, the tooth has no enamel, which doesn't mean the tooth doesn't exist because dentin is also a component of teeth.


It can be caused by any of the following:

  • Trauma
  • Bacterial infection
  • Maternal drug use
  • High fevers
  • Malnutrition (prenatal and postnatal)
  • Poor oral hygiene and or neglect
  • Slow enamel formation[2]
  • Celiac disease[3]

See also[edit]


  1. ^ Ash, Major M., Jr. and Nelson, S.J (2003). Dental anatomy, physiology, and occlusion (8th ed.). Philadelphia: W.B. Saunders. ISBN 0-7216-9382-2. 
  2. ^ What is Enamel Hypoplasia?
  3. ^ Celiac Disease, Oral Dis. 2013 Oct;19(7):635-41. doi: 10.1111/odi.12091.

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